The equilibrium phase diagram has been established using X-ray powder diffraction for the ternary Al-B-N system over the whole concentration region at 1500degreesC. No ternary compounds have been observed. The crystal structure of the Al0.185B6CN0.256 compound (Cmcm space group, Z=8, a=5.685(2) Angstrom, b=8.903(3) degrees, c=9.122(3) degrees, V=461.70 Angstrom(3), p=2.563 g/cm(3), mu=0.17 mm-(1,) R=0.0424 for 407 reflections with F-o>4sigma(F-o)) was determined from single crystal X-ray diffraction (automatic diffractometer BRUKER AXS CCD, Mo Kalpha radiation) and electron microprobe analysis. The structure is related to the Al0.61B6.50, Al0.253B6.37C and Al0.325B6C structures.
X-ray investigation of the Al-B-N ternary system: isothermal section at 1500° C. Crystal structure of the Al0.185B6CN0.256 compound / Rizzoli, Corrado; P. S., Salamakha; O. L., Sologub; G., Bocelli. - In: JOURNAL OF ALLOYS AND COMPOUNDS. - ISSN 0925-8388. - 343:(2002), pp. 135-141. [10.1016/S0925-8388(02)00282-7]
X-ray investigation of the Al-B-N ternary system: isothermal section at 1500° C. Crystal structure of the Al0.185B6CN0.256 compound
RIZZOLI, Corrado;
2002-01-01
Abstract
The equilibrium phase diagram has been established using X-ray powder diffraction for the ternary Al-B-N system over the whole concentration region at 1500degreesC. No ternary compounds have been observed. The crystal structure of the Al0.185B6CN0.256 compound (Cmcm space group, Z=8, a=5.685(2) Angstrom, b=8.903(3) degrees, c=9.122(3) degrees, V=461.70 Angstrom(3), p=2.563 g/cm(3), mu=0.17 mm-(1,) R=0.0424 for 407 reflections with F-o>4sigma(F-o)) was determined from single crystal X-ray diffraction (automatic diffractometer BRUKER AXS CCD, Mo Kalpha radiation) and electron microprobe analysis. The structure is related to the Al0.61B6.50, Al0.253B6.37C and Al0.325B6C structures.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
